Improvement in reservoir cooking-stoves



3 Sheets--Sheet1.

G. G. WOLFE. Cooking-Stove.

Patented June 15, 1875 WI 555E 3 Sheets--Sheet 3. G. G. WOLFE.Cooking-Stove.

No. 164,629. Patenter Hune15,l875.

I a M THE GRAPHIC C0.PHOTO-LITH.39&4I PARK PLAOLNY.

UNITED STATES GURDON Gr. WOLFE, OF TROY, NEW YORK.

IMPROVEMENT IN RESERVOIR COOKlNG-STOVES.

Specification forming part of Letters Patent No. 164,629, dated June 15,1875; application filed February 27, 1875.

To all whom it may concern:

Be it known that I, GURnoN G. WOLFE, of Troy, in the county ofItensselaer and in the State of New York, have invented certain new anduseful Improvements in Reservoir (looking-Stoves and do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings making a part of thisspecification, in which- Figure 1 is a plan view of the upper side of myrange, the top plate being removed. Fig. 2 is an elevation of the rearend of the same, a portion of the reservoircasin g being removed, so asto show the opening through the end plate between the descending flueand reservoir-chamber. Fig. 3 is a vertical central section of saidrange upon line a; 00 of Fig. 1. Fig. 4: is a vertical section upon line2 z of said figure, looking from the rear; and Figs. 5 and 6 areelevations of the rear end of said range, showing modifications in themeans of communlcation between the descending flue andreservoir-chamber.

Letters of like name and kind refer to lik parts in each of the figures.

The design of my invention is to increase the efficiency, capacity, andeconomy of a cooklug-range, having a fuel-chamber located at one end ofthe oven, a sheet-flue leading fronf said fuel-chamber between the topor boilerhole plate and the top of said oven into a descending fluelocated at the opposite end of the latter, and also having the exit-fluein rear of said'top or boiler-hole plate; and it consists, principally,in a direct-draft flue leading from the rear upper portion of thedescending flue to the exit-flue, by means of which the heated escapingproducts of combustion are caused to pass beneath all of theboiler-holes, whether the direct or reverse draft is employed,substantially as and for the purpose hereinafter specified. It consists,further, in the arrangement of a horizontal partition or flueplatebetween the upper or sheet-flue, the rear part of the descending flue,and the directdraft fiue,-by means of which the current of heated gasesis prevented from entering said descending flue at such point when thedirect draft is employed, and heat is more evenly distributed beneaththe boiler-holes, substantially as is hereinafter shown. It consists,further, in combining with the top oven-flue, descending flue, andexit-flue, the vertical or inclined flue-strip, which extends from theupper end of said descending flue downward, so as to compel the heatedescaping products of combustion to descend in front of said fluestripbefore passing into said exit-flue, by which means the force of thedirect draft is increased, substantially as is hereinafter set forth. Itconsists, further, in the combination of a dampered opening between theupper portion of the descending fine and the direct-draft flue, by meansof which the gases of combustion may be caused to pass from saiddescending fiue into and through the flue or fiues beneath the oven, ormay be permitted to escape from said descending flue directly into saiddirectdraft fine, substantially as and for the purpose hereinafter shownand described. It consists, further, in a water-reservoir chamberlocated outside of and combined with a descendin g flue, which, at itsrear upper portion, communicates with the direct-draft flue,substantially as and for the purpose hereinafter specified. It consists,further, in a water-reservoir chamber located beside and combined with adescending flue, which, at its rear side and upper end, is separatedfrom the top oven-flue by means of a horizontal flue-strip,substantially as and for the purpose hereinafter shown. It consists,further, in a water-reservoir chamber located beside and combined with adescending flue, which has, at its rear upper portion, a vertical orinclined flue-strip, beneath which the heated escaping products ofcombustion are compelled to pass before passing into the direct-draftflue, substantially as and g for the purpose hereinafter set forth.

In the annexed drawings, A represents the bottom plate, B the top plate,0 and O the end plates, D the front plate, and E the rear plate, of acooking-range, having a fuel chamber, F, and ash-pit G located at oneend, a do scendin g flue, H, located at the opposite end, and betweenthe said parts an oven, I, which extends from said front plate D to saidrear plate E, and is accessible only at its front side. Between the topoven-platct' and the top plate B is formed a sheet-flue, K, whichextends between the fuel-chamber F and the descending flue H, andenables the heated escaping products of combustion to pass from theformer into the latter. From the lower end of the descendin g flue H theheated gases pass into a sheet-flue, L, which is formed between thebottom of the oven I and the bottom plate A, and from thence into anascending flue, M, that is formed at the rear side and longitudinalcenter of the range. A flue-plate, Z, extending from the rear corner ofthe flue L diagonally outward to or beyond the center of said flue,causes the heated gases to be carried to the front corner of the samenext to the ash-pit before permitting said gases to pass rearward to andinto the ascending flue, by which means the whole lower side of the ovenis heated uniformly. From the upper end of the ascending flue M, whichfine is formed outside of the rear plate E, a flue, N, extendshorizontally to the rear end 0, and then downward, and, at a pointentirely below the top oven-plate 'i, connects with the descending flueH. A damper, O, of any desired form or manner of operation is located atsome suitable point between said descending and ascending flnes H and M,respectively, for the purpose of closing communication between the samethrough said flue N when desired.

As thus arranged, the operation of the fines is as follows: \Nhen thedamper O is closed the heated escaping products of combustion pass fromthe fuel-chamber F into and through the sheet-flue K, down thedescending flue H to the lower sheet-flue L, through the latter to theascending flue M, and from the same to the exit-flue h during whichjourney said gases pass beneath each boiler-hole 1) within the top plateB, and around a snflicient portion of the oven I to enable thetemperature of the latter to be raised to the desired point. \Vhen thedamper O is open the heated gases from the sheetflue K enter thedescending flue H, and from the upper end of the same pass into andthrough the direct-draft flue-N to the exit-flue M, no portion of saidgases being forced beneath the oven.

In order that the heated gases may be caused to have the same coursethrough the sheet-flue, whether the direct or reverse draft is employed,

a flue-strip, h, is extended across the upper en d 1 of the descendingflue H, from the back plate E forward a short distance, and from thencea second flue-strip, It, extends downward and ;forward to a point belowthe opening into the flue N,by which arrangement said gases arecompelled to pass in front of said flue-strip in precisely the samemanner, whether they afterward escape into the flue L beneath the ovenor into the direct-draft flue N, the result being that in either eventeach boiler-hole receives I the same percentage of heat.

I addition of the second flue-strip h enables a much better result to beproduced. The length of either said flnestrips or the angle of saidstrip h may be varied, as experience suggests, their principle ofoperation remaining the same. u

From a point upon a line with the top ovenplate '5 downward below thevertical center of the oven I, the end plate 0 is'removed, so as toexpose the descending flue H, and upon the outside of said plate issecured a casing, P, which in closes said opening, and forms achamber,Q, for a water-reservoir, R, said reservoir having, preferably, suchshape and dimensions as to cause a space to be left between its sides,ends, and bottom, and the corresponding portions of said casing.

The chamber Q, thus constructed, forms a part of the descending flue H,so that the heated gases within the latter expand into and circulatefreely through the former, by which means water within the reservoir Ris quickly heated, whether the direct or reverse draft is employed. Whenthe direct draft is in use the flue-plates h and h perform the sameoffice for the water-reservoir R as in case of the oven I viz., thediverting the current of heated gases from the rear side of the flue H,(to which said current would otherwise principally pass,-) and causingsaid gases to be distributed across,

and impart their heat to, the entire front of said reservoir.

Although the arrangement shown is preferably employed, the openingwithin the end plate O may, if desired, be dampered, as shown in Fig. 5,so as to permit the partial or entire exclusion of the heated gases fromthe chamber Q, and thereby enable the heating of the contents of thereservoir to be controlled.

Another arrangement (as seen in Fig. 3) consists in providing the upperportion of the opening in the end plate 0 with a damper, S, which iscapable of being turned forward and downward across the flue H, so as toclose the latter, and direct the heated gases into the upper portion ofthe chamber Q, and against the front of the reservoir R, from whencesaid gases would pass downward and again enter said flue, and eithercontinue around the oven or pass to the exit-flue, as the reverse ordirect draft was employed.

With this arrangement the oven could be heated without the reservoir,the reservoir without the oven; both could be heated at one time, orneither heated, as might be desired, the results named being securedwholly by the manipulation of the direct-draft damper O and end-platedamper S.

In case the flue-strips h and h are omitted from the flue H, the openingto the direct-draft flue' N should be located entirely below the bottomof the chamber Q.

Having thus fully set forth the nature and merits of my invention, whatI claim as new 1s 1. In combination with the descending flue H andexit-flue M, the directdraft flue N, leading from the rear upper portionof said descending flue to said exit-flue, by means of which the heatedescaping products of combustion are caused to pass beneath all of theescaping products boiler-holes, whether the direct or reverse draft isemployed, substantially as and for the purpose specified.

2. In combination with the sheet-flue K, descending flue H, anddirect-draft flue N, the horizontal flue-strip h, placed between therear part of said flue H and the lower side of said flue K, andoperating to prevent the current of heated gases from entering saiddescending flue at such point when the direct draft is employed, and tocause the heat to be evenly distributed beneath the boiler-holes,substantially as shown.

3. In combination with the sheet-flue K, descending flue H, andexit-flue N, the inclined flue-strip h, which extends downward from theupper end of said descending flue H, and compels the heated escapingproducts of combustion to descend in front of said flue-strip beforepassing into said exit-flue N, substantially as and for the purpose setforth.

4. In combination with the descending flue H and direct-draft flue N,the damper O, operating to control the course of the heated ofcombustion, and cause the same to pass beneath the oven, or to escapefrom said descending flue directly into said direct-draft flue N,substantially as and for the purpose shown and described.

5. A water-reservoir chamber, Q, located outside of and combined with adescending flue,

H, which at its rear upper portion communioates with the direct-draftflue N, substantially as and for the purpose specified.

6. A water-reservoir chamber, located beside and combined with adescending flue, H, which at its rear side and upper end is separatedfrom the top oven-flue by means of a horizontal flue-strip, h,substantially as and for the purpose shown.

7. A water-reservoir chamber, Q, located beside and combined with adescending flue, H, which has at its rear upper portion an inclinedflue-strip, h, beneath which the heated escaping products of combustionare compelled to pass before passing in to the direct-draft flue N,substantially as and for the purpose set forth. I

In testimony that I claim the foregoing I have hereunto set my hand this23d day of January, 1875.

GURDON G; WOLFE.

Witnesses:

GEo. S. PRINDLE, W. L. BENNEM.

